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  1. coatman

    form release agents

    Thanks for the comments. I should have mentioned, the form is Aluminum. I didn't observe discoloration or dust before forming the concrete. I'll try washing off, but the concrete appears stained.
  2. coatman

    form release agents

    I've seen brownish discoloration on the concrete using a vegtable oil based form release agent on a metal mold. Could this be due to excessive use or to a reaction with the previous release? Any comments would be appreciated.

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